Invisible People - Episode 1
Historian Joe Kerr meets the invisible people co-ordinating the things we can't do without. 1/5: Joe joins the staff at Centrecomm, the control centre managing London's 8,000 buses.
Historian Joe Kerr meets the invisible people co-ordinating the things we can't do without. 1/5: Joe joins the staff at Centrecomm, the control centre managing London's 8,000 buses.